2010 Dodge Ram 1500 Regular Cab Owner Manual - Page 462

460 STARTING AND OPERATING WARNING! Any work done to the vehicle's electrical system or wiring should be performed by a qualified automotive technician. If done improperly it may cause damage to the electrical system wiring and could result in serious or fatal injury. NOTE: Using "TOW/HAUL" mode or a lower gear range while operating the vehicle under heavy operating conditions will improve performance and extend transmission life by reducing excessive shifting and heat build up. This action will also provide better engine braking. The automatic transmission fluid and filter should be changed if you regularly tow a trailer for more than 45 minutes of continuous operation. Refer to "Maintenance Schedule" for the proper maintenance intervals. Towing Tips Before setting out on a trip, practice turning, stopping and backing the trailer up in an area away from heavy NOTE: Check the automatic transmission fluid level before towing. traffic. Automatic Transmission The "DRIVE" range can be selected when towing. However, if frequent shifting occurs while in this range, select "TOW/HAUL" mode (if equipped) or select a lower gear using the Electronic Range Select (ERS) feature. Tow/Haul To reduce potential for automatic transmission overheating, turn the "TOW/HAUL" feature ON when driving in hilly areas, or select a lower gear range (using the Electronic Range Select (ERS) feature) on more severe grades.